Troubleshooting Prodigy P2 Brake Controller Not Working on 2010 Nissan Titan

Question:

After hooking up with the nessin titen hook up we still dont have any brakes on trailer. Is there any fuses we to put in the fuse box

asked by: Melvin

Expert Reply:

Before you dig into the fuses are you testing the Prodigy P2, part # 90885, using the brake pedal or the manual override and is the truck moving or sitting still? You can't test a proportional brake controller like the P2 with the brake pedal unless the truck is moving. The manual override lever should work fine with the truck parked though.

Assuming it's still not working with the manual override there are some relays to install if the 7-way isn't a factory connector. Part # C57000 is the relays you need to install. I've linked a video showing where to install them. Additionally, if the Titan does have a factory 7-way the existing relays could be bad and need to be replaced using the same parts.

If you don't need the entire kit you do have the blue relay on its own, part # 38666-1, but the brown is not sold individually.

expert reply by: Charles S